21685643900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{162683}}^1$

素因数の和:162771

約数の個数: 72

約数和(自身を含む): 49705818624

約数和(自身を除く): 28020174724

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 43, 50, 62, 86, 100, 124, 155, 172, 215, 310, 430, 620, 775, 860, 1075, 1333, 1550, 2150, 2666, 3100, 4300, 5332, 6665, 13330, 26660, 33325, 66650, 133300, 162683, 325366, 650732, 813415, 1626830, 3253660, 4067075, 5043173, 6995369, 8134150, 10086346, 13990738, 16268300, 20172692, 25215865, 27981476, 34976845, 50431730, 69953690, 100863460, 126079325, 139907380, 174884225, 216856439, 252158650, 349768450, 433712878, 504317300, 699536900, 867425756, 1084282195, 2168564390, 4337128780, 5421410975, 10842821950, 21685643900]

約数ペア:

[(1, 21685643900), (2, 10842821950), (4, 5421410975), (5, 4337128780), (10, 2168564390), (20, 1084282195), (25, 867425756), (31, 699536900), (43, 504317300), (50, 433712878), (62, 349768450), (86, 252158650), (100, 216856439), (124, 174884225), (155, 139907380), (172, 126079325), (215, 100863460), (310, 69953690), (430, 50431730), (620, 34976845), (775, 27981476), (860, 25215865), (1075, 20172692), (1333, 16268300), (1550, 13990738), (2150, 10086346), (2666, 8134150), (3100, 6995369), (4300, 5043173), (5332, 4067075), (6665, 3253660), (13330, 1626830), (26660, 813415), (33325, 650732), (66650, 325366), (133300, 162683)]